Code of Ethics, Code of Conduct and Corporate Governance Guidelines In accordance with applicable NYSE listing standards and Securities and Exchange (“SEC”) regulations, the Board has adopted a Code of Ethics, Code of Conduct and Corporate Governance Guidelines. Preete C Chair of the Committee The Board and each Committee also conduct an annual self-evaluation and each Board member completes an assessment of his or her peers. The Company has been highly effective at driving margin growth in the transformation of PolyOne to a high performing global specialty company.

ENVIRONMENTAL POLICY Avient Corporation conducts its operations in an environmentally responsible manner that is protective of the communities in which we operate.

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ENVIRONMENTAL POLICY Avient Corporation conducts its operations in an environmentally responsible manner that is protective of the communities in which we operate.

July 2024 POSITION ON WATER STEWARDSHIP Avient Corporation conducts its operations in an environmentally responsible manner that is protective of the communities in which we operate.

Rigid thermoplastics include both commodity thermoplastics and engineering thermoplastics, such as polypropylene (PP), polystyrene (PS), high impact polystyrene (HIPS), polycarbonate (PC), acrynitrile-butadiene-styrene (ABS), poly(ethylene terephthalate) (PET), poly(methylmethacrylate) (PMMA), styrene acrylonitrile (SAN), poly(phenylene oxide) (PPO), polyamide (PA), PC/ABS blend and PPO/PS blend etc.. As given in Table II, TPE-1 demonstrates good adhesion on all ten substrates with very different surface energy and polarity; from the low like PP to the high like PC and ABS.

AVIENT RESPONSIBLE CARE POLICY Avient Corporation conducts its operations in a manner that is protective of the environment, and the health, safety and security of associates, customers, and all our stakeholders, including the communities in which we operate.

ADVENTURE CAMPER MANUFACTURER W A L L & F L O O R P A N E L S • Ability to customize the face sheet structure, core material, and thickness to meet performance requirements • Lightweight, high strength-to-weight ratio compared to wood and aluminum • UV, chemical, and moisture resistant • Custom formulated the panel construction to meet lightweight, durability, and insulation requirements • Avient engineering team provided on-going material sampling and technical support throughout the development cycle • Ensured the face sheet structure provided a smooth surface finish and good adherence to paint or aluminum fixtures Polystrand™ Thermoplastic Composite Sandwich Panels KEY REQUIREMENTS WHY AVIENT?

MAJOR TELECOM COMPANY L D S A N T E N N A A R R A Y • Required material suitable for Laser Direct Structuring (LDS) for a 3D antenna design that allowed Surface Mount Technology (SMT) for mass production in a short manufacturing time • 265°C /10 seconds • Provided high-heat material to enable miniaturization and multi-function integration for an innovative 3D design • Formulated LDS solution with low dielectric constant (Dk 3.98) and dissipation factor (Df 0.006) values Edgetek™ ET9600-8015 Formulation KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION DESIGN FREEDOM + SMT LEARN MORE Copyright © 2021, Avient Corporation.

Microsoft Word - Avient_SecurityPolicy_2020 SECURITY POLICY Avient Corporation places a high priority on protecting the security of our people, our buildings and equipment, and our proprietary information, technology and systems.